Analysis of A Gas Drain Breakdown and Leakage Accident
In response to a gas drain leakage accident,the concept of breakdown was explained from the structure and working principle of the drain,the appearance of the drain was observed and dismantled and inspected,it was hypothesized that the cause of the break-down might be perforation of the drain wall brought about by corrosion,and the the assump-tion was confirmed by calculations.The wall of the drain tank was corroded by acidic con-verter gas condensate for many years,and was gradually thinned to completely penetrated,and the sealing water is lost from the perforation.When the size of the corrosion perforation increases to the point where the amount of water lost exceeds the amount of condensate re-plenishment,the effective sealing height of the drain is reduced to a critical value and the drain is punctured,resulting in a large leakage of gas from the drain.In order to prevent such accidents,based on the analysis of the causes,a number of technical measures have been proposed to help detect and prevent the breakdown of drains,as well as to prevent gas from spreading and injuring people after the breakdown,thus improving the effectiveness of the management of drains.
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